No rendered content on Mac OS without `async` option for GLCanvas

[SoKnight]

Describe the bug JavaFX window has no rendered content on Mac OS with OpenGLFX. Setting up async option to true fixes this problem:

new GLCanvas(LWJGLExecutor.LWJGL_MODULE, GLProfile.Core, false, 0, true /* set 'true' here */);

Environment:

• OS: Mac OS Sonoma 14.1.1 (Apple M1)
• openglfx version: 4.0.5